Home / 185,413.80-255,869.64-100,530.24

Finding the Fourth Proportional to 185,413.80, 255,869.64 and 100,530.24

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Solution

The fourth proportional to 185,413.80, 255,869.64 and 100,530.24 is: 138,730.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,413.80 : 255,869.64 = 100,530.24 : x
  2. Step 2: Convert to fraction form
    185,413.80/255,869.64 = 100,530.24/x
  3. Step 3: Cross multiply
    185,413.80x = 255,869.64 × 100,530.24
  4. Step 4: Simplify right side
    185,413.80x = 25,722,636,317.91
  5. Step 5: Solve for x
    x = 25,722,636,317.91/185,413.80
  6. Step 6: Final answer
    x = 138,730.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.